Ideal Gases and Kinetic Theory

Of these three states of matter, which one has the most kinetic energy? 

• Solid 
• Liquid 
• Gas

Tags

NGSS.HS-PS3-2

A hypothetical gas that perfectly fits all the assumptions of the kinetic molecular theory is known as

• real gas

• ideal gas

• imaginary gas

• perfect gas

For a gas, which pair of variables are inversely proportional to each other (if all other conditions remain constant)?

• P, T

• P, V

• V, T

• n, P

The internal energy of an ideal gas depends on

• temperature

• pressure

• volume

• degree of freedom

Tags

NGSS.HS-PS1-5

Gas pressure is caused by

• gas molecules colliding with surfaces
• gas molecules condensing to a liquid
• gas molecules hitting other gas molecule
• barometers

Tags

NGSS.HS-PS2-1

As the temperature of a substance increases:

• The speed, and average kinetic energy of the particles, both increase.

• The speed, and average kinetic energy of the particles, both decrease.

• The speed of the particles increases, but the average kinetic energy of the particles decreases.

• The speed of the particles decreases, but the average kinetic energy of the particles increases.

Tags

NGSS.HS-PS3-2

Which of the following is not an assumption of the kinetic theory of gases?

• Gas molecules move with the same speed, known as the r.m.s. speed

• Gas molecules are in constant free random motion

• Collisions between gas molecules are perfectly elastic

• The size of a gas molecule is negligible compared to the distance between gas molecules

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-4

Root mean squared (r.m.s) speed of a gas molecules is directly proportional to _____________ and inversely proportional to ______________.

• molar mass ; temperature

• temperature ; molar mass

• temperature ; pressure

• pressure ; temperature

The following statements are assumptions of the kinetic theory of gases EXCEPT

• All gases are made up of identical atoms or molecules.

• The intermolecular forces are negligible except during collisions.

• The molecules undergoes inelastic collisions with one another.

• The volume of the atoms or molecules is negligible when compared to the volume occupied by the gas.

Tags

NGSS.HS-PS3-4

The equation "PV = nRT" is referred to as ___

• The Towneley-Power Law

• Pivnert's Law

• The Perfect Gas Rule

• The Ideal Gas Law

Tags

NGSS.HS-PS3-4